[R-390] R392 Condensation

[Barry Hauser]

Hi Peter:

You must be running it battened down - as it was designed to run.  However,
that can result in heat buildup, especially if you're still using the 26A7
audio tube.

Some have resorted to drilling vent holes in the case - not nice. Instead,
you can loosen up the allen bolts on the front panel and slide the radio
forward, leaving a gap of about 1/4", or a small handful of millimeters to
allow venting of heat and humidity as it warms up.  Might be a good idea to
run it that way regularly to minimize heat buildup, or you can close it up
after a few hours of running while it's still warm so as to seal out the
humidity.

If that doesn't work, you may have to leave both case and rx out in the sun
on a hot dry day or use a hair dryer on it, but carefully.  If it's not
bolted to the back of a Jeep being driven through swamps, I recommend
running it partially opened.

Barry

----- Original Message -----
From: "g4gjl" <g4gjl@btopenworld.com>
To: <R-390@mailman.qth.net>
Sent: Sunday, June 08, 2003 10:06 AM
Subject: [R-390] R392 Condensation


> When my R392 has been on for an hour or two the tuning window fogs up with
> internal condensation.
>
> How can that be prevented?
>
> Peter G4GJL